Using the STC15W chip as the main control chip, the RDA5807S radio module is applied, which has the effect of 87-108MHz global Frequency Modulation reception band compatibility
The power amplifier part adopts TDA2822 power amplifier integrated circuit, which features simple circuit, high sound quality and wide voltage ranges.
Support dual power supplys (USB 5V power supplys or 2 No. 5 battery power supplys).
Highly sensitive antenna, strong anti-interference ability, support automatic station search.
Support 3.5mm headphone connection.
Using the STC15W chip as the main control chip, the RDA5807S radio module is applied, which has the effect of 87-108MHz global Frequency Modulation reception band compatibility, with the advantages of noise cancellation, soft mute, bass enhancement, high sensitivity, low noise and strong interference resistant ability. The power amplifier part adopts TDA2822 power amplifier integrated circuit, which features simple circuit, high sound quality and wide voltage ranges. Support dual power supplys (USB 5V power supplys or 2 No. 5 battery power supplys). Features: Using the STC15W chip as the main control chip, the RDA5807S radio module is applied, which has the effect of 87-108MHz global Frequency Modulation reception band compatibility, with the advantages of noise cancellation, soft mute, bass enhancement, high sensitivity, low noise and strong interference resistant ability.  The power amplifier part adopts TDA2822 power amplifier integrated circuit, which features simple circuit, high sound quality and wide voltage ranges.  Support dual power supplys (USB 5V power supplys or 2 No. 5 battery power supplys). Highly sensitive antenna, strong anti-interference ability, support automatic station search. Support 3.5mm headphone connection. Digital tube display, you can see the frequency clearly at a glance. With power switch, solve the pain of frequent unplugging. The parts are shipped in bulk and need to be soldered by yourself, easy to solder, high success rate of soldering, complete the dream of making a radio by yourself. Wide ranges of use, suitable for schools, researchers, DIY enthusiasts, training students' hands-on ability. Optional Housing: Lightweight and compact, exquisite acrylic housing, crystal clear, fine workmanship. Specifications: Name: Radio Assembly Kit  Material: printed circuit board Type: without housing, with housing (optional) Power supplys: USB 5V power supplys or 2 * No. 5 battery power supplys Voltage: 5V/3V (dual power supplys) Output power: 0.5W Frequency range: 87-108MHz Speaker: 1/2W 8R speaker Package size: 120 * 80 * 30mm / 4.72 * 3.15 * 1.18in Package weight: Without housing: 66g / 2.33ounce With housing: 130g / 4.59ounce Packing List: 1 * Radio Assembly Kit